Question

Aflati x din egalitatile:
A)3-x=0,3
B)x•1,5=6
C)0,4:9
D)2•x+0,7=2,3
Dau coroana

Answer 1

$a)3 - x = 0.3$

$- x = 0.3 - 3$

$- x = - 2.7 \: | \times ( - 1)$

$x = 2.7$

$b)x \times 1.5 = 6$

$x = 6 \div 1.5$

$x = 4$

$c)0.4 \div x =9$

$x=0,4\div9$

$x=0.0(4)$

$d)2 \times x + 0.7 = 2.3$

$2x + 0.7 = 2.3$

$2x = 2.3 - 0.7$

$2x = 1.6 \: | \div 2$

$x = 0.8$

Answer 2

a) x=3-0.3=2.7;
b) x=6/1.5 = 4;
c)  unde e x-ul?
d) 2*x = 2.3 -0.7
    2 * x = 1.6
    x = 1.6 / 2
   x = 0.8